Surgery – Truss – Perineal
Patent
1980-12-16
1982-11-30
Cohen, Lee S.
Surgery
Truss
Perineal
128247, A61B 112
Patent
active
043611389
ABSTRACT:
A ventilation and feedwater switching apparatus for an endoscope including a tubular member adapted to be fixedly mounted in an operating end of an endoscope, and adapted to have a ventilation tube and a feedwater tube connected to it, in such a manner that the tubular body is disposed in a ventilation path and a feedwater path. A cylindrical sliding valve body is slidably and removably fitted in the tubular body to permit switching between the ventilation and the water feed operation. The sliding valve body has an air discharge port at its upper end, and at its lower end an air delivery port which is normally closed by a check valve body which is detachably mounted thereon. In one preferred embodiment, a valve push rod is disposed in and extends through the sliding valve body, and forces the check valve body open in response to an external push.
REFERENCES:
patent: 3517669 (1970-06-01), Buono et al.
patent: 3674010 (1972-07-01), Falenks
patent: 3726272 (1973-04-01), Fukami et al.
patent: 3791379 (1974-02-01), Storz
patent: 3903877 (1975-09-01), Terada
patent: 3958566 (1976-05-01), Furihata
patent: 4261343 (1981-04-01), Ouchi et al.
patent: 4281646 (1981-08-01), Kinoshita
Cohen Lee S.
Olympus Optical Company Ltd.
Sykes Angela D.
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